[STDCXX-936] [Sun C++] fails to #include standard headers more than once

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: External

Environment

Sun C++ 5.9 SunOS_sparc Patch 124863-01 2007/07/25

• Severity: Incorrect Behavior
• Assignee: Unassigned
• Reporter: Martin Sebor
• Created: 16/May/08 00:11
• Updated: 02/May/13 02:29

Description

The program below fails to compile with Sun C++. The compiler assumes <limits> refers to its own header rather than the one provided by the user in the same directory as the program source code, t.cpp.

$ cat -n limits && cat -n t.cpp && CC -c -I. -library=%none -V t.cpp
     1  // limits
     2  static int foo = 0;
     1  // t.cpp
     2  #include <limits>
     3  #define foo bar
     4  #include <limits>
     5  #undef foo
     6  
     7  int main ()
     8  {
     9      return foo + bar;
    10  }
CC: Sun C++ 5.9 SunOS_sparc Patch 124863-01 2007/07/25
ccfe: Sun C++ 5.9 SunOS_sparc Patch 124863-01 2007/07/25
"t.cpp", line 9: Error: bar is not defined.
1 Error(s) detected.

Issue Links

• is depended upon by: STDCXX-937 [Sun C++] unsats on std::numeric_limits<double> data members